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- Hydrogen gas is extremely flammable. 氢气是特别易燃的气体。
- What chemical is used in the hydrogen gas dryer? 氢气干燥器里用的是什么化学药品?
- Saturday morning's launch was scrubbed due to a hydrogen gas leak. 由于氢气泄漏，周六早晨的发射计划被迫取消。
- Pure hydrogen gas is used in large electric generators to cool the coils. 纯氢被用于大型发电机线圈的冷却。
- An external jolt of electricity helps generate hydrogen gas at the cathode. 在外部电流下能在阴极处产生出氢气。
- ITM Power's Ford Focus burns hydrogen gas in a conventional petrol engine. 氢气制造公司所生产的车种，则使用氢气启动汽油引擎。
- It is still unknown which star or stars ionize the red-glowing hydrogen gas. 到底是哪颗或哪些恒星电离了泛着红光的氢气，我们还不得而知。
- The hydrogen gas can be used as fuel in adapted petrol-engined vehicles. 氢气可以当作燃料，而且适用于汽油引擎车辆。
- The tadpole-looking feature in the center of this image is a nodule of cold hydrogen gas laced with dust. 在图像中心蝌蚪状的结构是一个混和尘埃的冷氢云。
- Before that time, a haze of neutral hydrogen gas shrouded these first beacons in the infant cosmos. 再往前推进，则是一团团中性氢气所形成的薄雾，包裹著早期宇宙中第一批诞生的恒星。
- But they were still blown about by the wind. The hydrogen gas was dangerous,too. It caught fire very easily. 但是，他们仍然要任风来摆布，而且，氢气也有危险性，非常容易着火。
- In the laboratory, small amounts of hydrogen gas may be made by the reaction of calcium hydride with water. 实验室中制取少量的氢气,可以用氢化钙跟水反应。
- At the center of the cloud, a hot, dense sphere of Hydrogen gas held together by gravitation began to radiate. 在云彩的中心,氢气热,密集的球形由万有引力相连开始放热。
- The Hydrogen gas is usually the first type of gas consumed in a star and then other gas elements such as Carbon, Oxygen, and Helium are consumed. 最早被燃烧的恒星气体通常是氢气，随即开始消耗其它气体元素，如碳、氧和氦。
- The atmosphere in areas in which hydrogen gas may be vented and might collect should be tested with a portable or continuous flammable gas analyzer. 用便携式或连续可燃气体分析仪来监测特定区域的空气，这些区域包括氢气排放口和氢容易积聚的地方。
- The problem is that AlH_3 molecule is easier to dissociate and produce hydrogen gas. 问题在于AlH3易于部分离解出氢气;导致发生化学变质.
- But they were still blown about by the wind. The hydrogen gas was dangerous, too. It caught fire very easily. 但是，飞艇仍然要任凤来摆布，而且，氢气也有危险性，非常容易着火。
- The red-glowing gas results from high-energy starlight striking interstellar hydrogen gas. 发出红色辉光的气体是高能光子撞击星际间的氢所产生。
- The process of adding hydrogen gas in fuel gas of ethylidene chloride pyrolyzer and its effects were introduced. 介绍了在二氯乙烷裂解炉燃料气中添加氢气的工艺过程和效果。
- Thunderstorms delayed the mission three times and hydrogen gas leaks caused two postponements. 雷暴天气已延误了三次发射，且氢气泄漏也导致两次延期。
